On alarm.js, line 64:
// TODO: verify this is all we need to handle.
var type = (begins < now) ? 'alarm-starting' : 'alarm-started';
and
# alarms
alarm-starting={{title}} started {{distance}}
alarm-started={{title}} starting in {{distance}}
The ternary if has switched values (if begins<now, it means that the event has started), but it's corrected on strings.
This should not block, but requesting just in case.